The adsorption of phenol from aqueous solution by carbonate hydroxylapatite (CHAP) synthesized using abandoned eggshell and urea was studied, and CHAP characterized by FT-IR, SEM and EDS. Influential factors of adsorption performance were investigated, such as pH value, adsorption period, phenol initial concentration and temperature from aqueous solution. The results showed that adsorption capacity for phenol was better at pH=3~5 and pH=9~10 from aqueous solution. The equilibrium adsorption data could be described by the Langmuir and Freundlich isotherm models. The first-order and pseudo-secon...